Date: Tue, 24 May 2005 21:47:11 +0000 (UTC) From: Olivier Houchard <cognet@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/arm/arm pmap.c swtch.S Message-ID: <200505242147.j4OLlBpR096683@repoman.freebsd.org>
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cognet 2005-05-24 21:47:11 UTC FreeBSD src repository Modified files: sys/arm/arm pmap.c swtch.S Log: Write back affected pages in pmap_qremove() as well. This removes the need to change the DACR when switching to a kernel thread, thus making userland thread => kernel thread => same userland thread switch cheaper by totally avoiding data cache and TLB invalidation. Revision Changes Path 1.29 +11 -5 src/sys/arm/arm/pmap.c 1.15 +1 -1 src/sys/arm/arm/swtch.S
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